Lindsay Lohan is “in denial” about being a drug addict and doesn’t realize her substance abuse issues “could kill her” — this according to one of her closest confidants.

Lohan is headed back to rehab in the next 48 hours — and while a final decision hasn’t been made on the destination — sources tell RadarOnline.com the Mean Girls star is closely looking at the Betty Ford Clinic in Rancho Mirage, California, which is just outside Palm Springs.

This will be Lohan’s fifth time entering a rehab facility for substance abuse, her second stint this year, with the most recent being a 22-day stint at UCLA’s Medical Center in August following her 14-day prison term.

But according to the source, “Lindsay is still in denial about being an addict and doesn’t realize this disease can kill her.”

Lohan will have access to the campus’ 20-acre state of the art facility that is privately gated and armed with security around the clock, as well as the center’s promise of a “lifetime of support” after she leaves the program.

The Betty Ford Center has hosted many notable celebrities such as Anna Nicole Smith, Keith Urban, Robert Downey Jr. and Chevy Chase.